Progress of Geothermal Reinjection in Bedrock Reservoirs in Tianjin
- Key words
- Reinjection, geothermal, bedrock reservoir, Tianjin
- Location
- Tianjin, China
- Conference
- World Geothermal Congress
- Year
- 2010
- Session
- 5. Sustainability
- Language
- English
- Paper number
- 0514
Full text
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Abstract
Since the early 1990s, geothermal reinjection research in bedrock reservoirs has been started in Tianjin, Various geothermal reinjection tests have been carried out. And from 1999, reinjection has come into force by government requirement. Reinjection wells have been drilled progressively in urban and suburban areas of Tianjin. In 2008, 5.86 million m3, 41.3% of the exploited bedrock geothermal fluid was reinjected. The reservoir pressure had been showing a declining trend that has mitigated since reinjection started. In addition, geothermal reinjection saves exploitation cost, and has gained obvious environmental benefits.
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